Innovative Safety Device Extends Survival Time During Avalanches by Fivefold

Recent research conducted by Eurac Research has demonstrated that a user-carried safety device can dramatically enhance survival prospects for avalanche victims. The device, known as the Safeback SBX, has proven capable of prolonging the critical window of survival by delivering oxygen-rich air directly to individuals buried under snow, thereby delaying asphyxiation.

The study was initiated after the Norwegian company behind the Safeback SBX sought independent testing of its product. Led by physician Giacomo Strapazzon, the international team faced the challenge of conducting experiments under extremely harsh conditions, with participants entirely buried in snow at high altitudes in the Dolomites. Despite these difficulties, all tests proceeded successfully, with volunteers ranging in age from 23 to 54, primarily ski mountaineers.

The device operates on the principle of snow's natural porosity, using a compact electric pump to supply up to 150 liters of oxygen-enriched air per minute. When activated, it can sustain a buried person’s airways with breathable oxygen for up to 90 minutes. During the trials, none of the participants' oxygen saturation levels fell below critical thresholds within the first 35 minutes, a period during which most avalanche fatalities occur due to suffocation.

Remarkably, the study showed that even with severe snow burial, the air supply significantly increased the time before critical hypoxia sets in. "Considering that asphyxiation causes death in about two-thirds of avalanche victims within 35 minutes, the fact that no participant dropped below 80% oxygen saturation during this period is highly encouraging," said the researchers.

The research was a collaborative effort involving several institutions, including the University of Bergen, Haukeland University Hospital, CNSAS, SLF, and others, with logistical support from specialized rescue organizations. The device leverages the porosity of snow to deliver life-saving oxygen, potentially offering a crucial advantage in mountain rescue scenarios.

While preventative measures remain essential, this innovative device provides an additional tool to extend survival times in emergency situations, ultimately improving rescue outcomes for avalanche victims. The findings are especially timely as winter approaches, emphasizing the importance of advanced safety equipment for mountain sports enthusiasts.